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Overview

​Learn about the tools and techniques used to characterize groundwater/surface water interactions, an increasingly timely topic as interest in this topic grows, during this two-day NGWA short course.

Groundwater and surface water are interconnected water resources. Their interactions are complex, being controlled by numerous variables that may change spatially and temporally. As interest in groundwater and surface water interactions is increasing in response to limited water resources, sediment combination, and climate change, refined understanding of the processes at the groundwater/surface water interface is critical.

You will learn about the tools and techniques used to characterize these interactions to be able to evaluate the environmental risk they pose at contaminated waterways. You will also gain insight on the evolving regulatory perspectives relative to resource management, environmental investigations, and remedial actions.

Scientific methods, processes, and regulatory conditions associated with the groundwater/surface water interface — which is dynamic in nature, reflecting both groundwater discharge and recharge — will be presented.

The first day of the course will present field methods. Field work will be conducted to measure the physical and chemical conditions in the hyporheic zone. The projected methods emphasized will include piezometers, permeameters, and seepage meters.

Day two of the course will present mathematical approaches utilized to define the conditions at the interface, including a description of commonly used analytical and numerical approaches to assess groundwater flux and attenuation in the hyporheic zone. These approaches will be presented relative to existing regulatory science.